Parametric instability in GEO 600 interferometer

A. G. Gurkovsky; S. P. Vyatchanin

doi:10.1117/12.752324

9 July 2007 Parametric instability in GEO 600 interferometer

A. G. Gurkovsky, S. P. Vyatchanin

Proceedings Volume 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics; 672712 (2007) https://doi.org/10.1117/12.752324
Event: The International Conference on Coherent and Nonlinear Optics, 2007, Minsk, Belarus

Abstract

We present the analysis of undesirable effect of parametric instability in the signal recycled GEO 600 interferometer. This effect leads to the excitation of the additional (Stokes) optical mode, having frequency &ohgr;₁, and the mirror elastic mode, having frequency &ohgr;_m. This happens when the optical energy stored in the main interferometer mode, having frequency &ohgr;₀, exceeds a certain threshold and the detuning &Dgr; = &ohgr;₀ - &ohgr;₁ - &ohgr;_m is small. We discuss the potential of observing the effect of parametric instability and its precursors in GEO 600 interferometer. This approach provides the best option to get familiar with this phenomenon, to develop experimental methods to depress it and to test the effectiveness of these methods in situ.

Citation Download Citation

A. G. Gurkovsky and S. P. Vyatchanin "Parametric instability in GEO 600 interferometer", Proc. SPIE 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics, 672712 (9 July 2007); https://doi.org/10.1117/12.752324

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